Hollywood Racks HR400 Road Runner 4-Bike Hitch Mount Rack (2-Inch Receiver) Soft rubber Anti-sway bike cradles hold up to 4 bikes firmly in place Tilts for easy cargo access; Arms fold when not in use Features patented no wobble-no tools hitch tightening system for fast and secure installation; Fits 2" hitch receivers only; Not to be used with a 1-1/4"-2" hitch receiver adapter; Not to be used on a trailer or towed vehicle Max Capacity: 35lbs per bike Kids bikes, ladies frame bikes and some mountain bikes may require a top tube adapter to fit on the bike rack Carries up to 4 bikes and fits 2" hitches only Easy to adjust Includes keyed alike locking hitch pin and 8' security cable Pre-assembled Patented no-wobble hitch system eliminates slack between receiver hitch and racks